I am not sure but I would not be a bit surprised if the prop just
stops. Kind of hard to rotate the engine 2.17 times as fast as the
prop from air pressure alone. Perhaps in a dive.
The 2.85:1 might be even more difficult.

In any event if it does not stop you could pull up and you may be able
to stop the prop if there is no possibility of restarting the engine.
To reduce drag and extend your glide.
If the engine idles only and does not respond to the throttle I would
say that is a rather rare failure mode. These should be things you
should find out about in early testing with plenty of altitude.
Perhaps Tracy or someone else flying can do these tests for us.

The prop does stop. Going 100 mph it would stop, pointing the nose down a bit the prop will
try to turn, maybe half a revolution now and then.

Finn

Do you know the RV3 glide ratio Finn with the prop stopped?

Paul Lamar

No, I was on downwind when the engine quit, I concentrated on flying the airplane and landing,
but Tracy's numbers seems quite believable.

Finn

Tracy, 500 fpm at what speed?

Paul Lamar
 
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